Trump or biden one word only

The dynamics of a musical piece refer to the a. key signature b. composer’s history c. volume changes d. instrumentation

Now for all my fellow anime lovers i have 4 questions: 1. which ship would have been the best ending for inuyasha a) inuyasha x kagome b) sesshomaru x kogome c) koga x kagome d) none 2. what is your ideal ending for fairy tail 3. which show wouldn't you mind watching or rewatching a) ghost hunt b) psycho pass c) inuyahsa d) the wallflower e) pick your own 4. what is the anime show you that you would love to live in for a year?

In three to five sentences, list and briefly explain the three elements of music